Hello everyone,
I'm sorting a document numerically, and then want that document to be written to a new file. The UNIX sort command works very well so I used:
#!/usr/bin/perl
use strict;
use warnings;
my $file = 'somefile.txt';
my @args = ("sort", $file);
system(@args) == 0 or die "sytem @args failed: $?";
Which gives me a nice print out of my sorted document to the terminal screen. I want to write this to a new document and know you can use the UNIX command
sort filename > newfilename to easily do this, but I can't seem to figure out how to make Perl input this command. Using
my @args("sort" "somefile.txt" "somefile2.txt");
system(@args) == 0 or die "system @args failed: $?";
outputs two sorted documents, or gives the error the second file does not exist (if I am trying to create a new one)
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.